Process for the manufacture of two-part boxes



Jan. 9, 1934. J. SCHMIEDEL ,147

PROCESS FOR THE MANUFACTURE OF TWO-PART BOXES Filed Nov. 24, 1931 2 Sheets-Shae} 1 W/Y/b/"f; kl hahr'zes. fm'wedei 7 6? haw Jan. 9, 1934. r J. SCHMIEDEL 1,943,147

PROCESS FOR THE MANUFACTURE OF TWO-PART BOXES Filed Nov. 24. 1931 2 SheetsSheet 2 7b Sch 1a.

fienfor'x flame; Sch mled l 5 m AMCQM Patented Jan. 9, 1934 UNITED STATES PATENT OFFICE PROCESS FOR THE MANUFACTURE OF TWO-PART BOXES Application November 24, 1931, Serial No. 577,117, and in Germany February 28,- 1931 18 Claims.

and which penetrates into the slit between the upper and lower part.

.As this inclined surface always operates on the front corner of the box, it often happens that the lid is raised unevenly and consequently that part of the edging strip or covering of the box parts which forms the hinge. is partially burst and torn off. In order to avoid this, the present invention provides that after the edging strip (covering) has been cut open on three sides and the box opened, the two hinged walls of the box are pressed against one another for a certain time, and then only the box is closed.

The invention comprisesan apparatus for carrying out this process. This apparatus is characterized in that the boxes which are cut open on three *sides and opened are passed consecutively at intervals by a continually running conveyer belt to a bridge where a guided pair of tongs engages from above with the two hinged walls of the box and presses them together, whereupon the tongs are opened and removed and the box is deposited on a second continually running conveyer device, where the closing of the lid is performed.

The apparatus shown in the annexed drawings will serve to illustrate the invention.

Fig. 1 is an' elevation, Fig. 2 a plan of the new apparatus.

Figs. 3 and 4 show a side elevation of the means for removing the shaping blocks from the boxes and the device for pressing the hinged walls against one another.

The opened boxes Sch are conveyed on the delivery track 1 by the catches 2 of the conveyer chain 4 which runs over the sprocket wheel 3, and are pushed consecutively onto the bridge 5. In this operation they are guided by the angle bars 1a and 1b, of which la at the same time holds the lid in the completely open position, i. e. turned over to 180. On the bridge 5, the shaping block F is first removed from the box. This is done by means of two gripping members 6 which are articulated on the arm '7 of a sliding member 9 which moves up and down in a her 9.

vertical guideway 8. The ends of the gripping members 6 penetrate into the openings F of the shaping block and seize it by being spread out under the influence of a wedge 10. The latter is mounted on a rod 11 which is adapted to be displaced vertically in the arm 7 of the sliding member 9, which rod by means of a bar 12 is attached to a sliding member 13 which is adapted to be displaced vertically in the sliding men The two sliding members 9 and 13 are 5 actuated by two cam mechanisms in such manner that the gripping members 6 penetrate into the openings F, are then opened out, whereupon they raise the shaping block and place it on the delivery track, on which it is carried away in known manner by means of any desired form of conveyer device, the two gripping members 6 being caused to approach one another before leaving the openings F, and remain in this position until they have been lowered again and introduced into the next shaping block.

The boxes are moved on by the boxes on the bridge 5 which are brought along by the catches 2 and are still provided with shaping blocks, and thus arrive within the sphere of operation of the 0 tongs 14, the jaws 15, 16 of which are articulated on the bell-crank lever 18 mounted at 17. The two'jaws 15, 16 of the tongs are connected together by a tension spring 19 which tends to close them. The bell-crank lever 18 is controlled by 35 a cam 20 in such manner that each time a box arrives under the tongs 14, the said tongs are lowered. After the jaws 15, 16 have seized the two hinged walls of the box, they are left to the action of the springs 19 by the raising of the wedge 21 and this spring draws the jaws 15,16 together. The Wedge 21 is mounted on a bell-crank lever- 22 mounted at 17, which is actuated by a cam 23.

Immediately before the boxes are moved on, the

jaws 15, 16 are opened by the lowering of the wedge 21, and the tongs 14 are withdrawn from the box.

After the hinged walls have been pressed .to-

I gether the opened boxes must be pushed ofi the drawings (belt drive or the like).

presses one end 31 of the bell crank lever 32 mounted at 30 downwards, so that the other forkshaped end .33 of this lever moves, by means of the bolt 34, the sliding member 26 forward to some extent and with it the box grasped by its finger 28. On the return of the sliding member 26, which-is efiected by the spring 27, the finger 28 is raised from the edges of the lower portion of the box and is finally placed in the next box which has arrived in position in the meantime. The movement of the sliding member 26 need only be sufficient that one of the catches 35 attached to the conveyer chain 24 can come into position behind the box which is moved forward by the finger 26.

While the lid, grasped by the closing wire 25, begins to close, the front wall of the box comes against a counter-support 36, which is attached to a double-arm lever 38 mounted at 37. This counter-support is actuated in such manner that it remains somewhat behind the movement of the conveyer chain 24. Consequently, as can be seen in Fig. 2, the front and rear walls of the box are held in the correct position, so that the edges of the body of the box, on closing, are sure to arrive inside the walls of the lid. After the lid has been pressed down so far that its walls begin to hold the edges of the body, the counter-support 36 releases the delivery track and is moved backwards while the box passes on.

Shortly before the closing wire completely presses down the lid, the wall of the box opposite the hinged wall is pressed slightly inwards by a spring 39 attached to the angle bar 11), thus facilitating the closing'of the box.

The conveyer belt 24 carries the boxes in front of a plunger 40, which then thrusts them into a double-shaft 41.

v The 'cams and 62, which by means of the two-armed levers 61 and 63 actuate the sliding members 9 and 13 which are adapted to be displaced in one another, are mounted on'a shaft 64 which is driven by means not shown in the On the shaft there is also arranged a bevel pinion 65 which, by

1 way of a second bevel pinion 66, a shaft 67 and a chain drive 68, 69, '70, drives the shaft on which the sprocket wheel 3 for the conveyer chain 4 is mounted.

On the shaft 64 there is also mounted a sprocket wheel 64', which by means of a chain 42 and a sprocket wheel 43 drives the shaft 71 which is mounted at 44 and 45. .On this shaft is mounted the cams 20 and 23 which serve to actuate the tongs 14, and the cam 46, which by means of the two-armed lever 47 actuates the lever 38. The

' bevel pinions 48,49 drive a shaft 50 on which one of the two sprocket wheels 51 for the conveyer chain 24 is mounted. The sliding member 40 is driven by the two-armed lever 47 by means of a rod 52. 53.

Having thus described the nature of the said invention and the best means I know of carrying the same into practical effect, I claim:

1. In the method of manufacturing hinged boxes of card-board, paper and the like the step of pressing the sides of the boxes having the hinge together to secure the hinge ofedging strip to the sides of the boxes.

2. The method of manufacturing hinged boxes which comprises forming the 'carton then forming the lid connecting corresponding sides of the carton and lid by an edging strip opening said box so that the lid and carton are positioned in substantially a single plane and then press g the sides of the carton and lid carrying the hinge together so as to securely secure the hinge to the sides of the lid and carton.

3. The method of making carton boxes having a hinged lid comprising forming the carton then forming the lid assembling the lid upon the carton then securing the lid to the carton by an edging strip extending around all the walls of the box then cutting said edging strip upon three sides of the box so that the edging strip untouched upon the other side will serve as a hinge then opening the box so that the lid and the carton are positioned in substantially a single plane and then. compressing the inside walls of the lid and carton carrying the hinge together soas to firmly secure the strip serving as a hinge to the walls of said lid and carton. v

4. An apparatus for forming hinged boxes, comprising means for forming the box, means for forming a lid for said box, means for securing an edging strip to a corresponding wall of said box and lid, means for opening said lid so as to position the same in substantially the same plane as the box, and means for compressing the adjacent walls of saidlid and box when in open po- 1 sition so as to firmly secure said strip to said lid and box.

5. An apparatus for forming hinged boxes, comprising means for forming the box, means for forming a lid for said box, means for securing an edging strip to a corresponding wall of said box and lid, means for opening said lid so as to position the same in substantially the same plane as the box, and means for then closing said lid upon said box. 1

6. An apparatus for forming boxes having a hinged lid comprising a bridge, means for feeding boxes having a lid hinged by an edging strip to the same and disposed in substantially the same plane as said box to said bridge and means for compressing the adjacent walls of said lid and box together so as to firmly secure the hinge to said lid and box.

'7. An apparatus for firmly securing the lid to a box comprising a bridge, means for feeding a box having a lid thereon with the lid disposed in substantially the plane of said box to said bridge, means for compressing the adjacent walls of said lid and box together to firmly secure the hinge to said lid and box, a second conveying means, and means for transferring said box tosaid second conveying means.

8. An apparatus for firmly securing the lid to a box comprising a bridge, means for feeding a box having a lid thereon with the lid disposed in 1.

substantially the plane of said box to said bridge, means for compressing the adjacent walls of said lid and box together to firmly secure the hinge to said lid and box, a second conveying means, and means for transferring said box to said second 1 conveying means, and means for closing said lid cooperating with said second conveying means. 9. In an apparatus for firmly securing hinged lidsto boxes, the combination of a bridge, means for conveying boxes having lids hinged by an 1 edging strip thereto to said bridge with the lids disposed in substantially the same plane as said boxes and pivoted tongs for compressing together the adjacent walls of said lid and box so as to firmly secure the hinge to said lid and box. 1 10. An apparatus forflrmly securing hinges to boxes having lids comprising a bridgev upon which a hinged boxha 'ng a form therein is disposed with the lid thereo positioned in substantially the plane ofthe box, pivated tong members 1 positioned adjacent said bridge, resilient means normally tending to hold the ends of said tong members in contact, a wedge member for openand box together so as to firmly secure the hinge to said wall.

12. An apparatus for forming boxes having lids comprising a bridge upon which said box having a form therein is positioned with the lid entirely open so as to be positioned in substantially the same plane as said box, means for removing the form from said box, means for compressing the adjacent walls of said box together so as to firmly secure the hinge to said walls of said lid and said box reciprocating means for advancing said box after said walls have been compressed, and means for closing the lid upon said box.

13. An apparatus for forming boxes having lids comprising a bridge upon which said box having a form therein is positioned with the lid entirely open so as to be positioned in substantially the same plane as said box, means for removing the form from said box, means for compressing the adjacent walls of said box together so as to firmly secure the hinge to said walls of said lid and said box, a pivoted finger for advancing said box after said walls have been compressed and means for reciprocating said finger.

14. An apparatus for forming boxes having lids comprising a bridge upon which said box having a form therein is positioned with the lid entirely open so as to be positioned in substantially the same plane as said box, means for removing the form from said box, means for compressing the adjacent walls of said box together so as to firm- 1y secure the hinge to said walls of said lid and said box. conveying means for advancing said boxes from said bridge after the walls have been compressed, lugs carried by said conveying means and a reciprocating pivoted finger for advancing said boxes with said lids a sufficient distance from succeeding boxes so as to allow room for said lugs to come into action to advance said boxes.

15. An apparatus for forming boxes having lids comprising a bridge upon which said box having a form therein is positioned with the lid entirely open so as to be positioned in substantially the same plane as said box, means for removing the form from said box, means for compressing the adjacent walls of said box together so as to firmly secure the hinge to said walls of said lid and said box, a conveying means for leading said boxes from said bridge, a reciprocating member reciprocated in the direction of said conveying means and a freely pivoted finger carried by said sliding member which is adapted to cooperate with said conveying means for removing said boxes from said bridge.

16. An apparatus for forming boxes having lids comprising a bridge upon which said box having a form therein is positioned with the lid entirely open so as to be positioned in substantially the same plane as said box, means for removing the form from said box, means for compressing the adjacent walls of said box together so as to firmly secure the hinge to said walls of said lid and said box, a conveying means for leading said boxes from said bridge, a reciprocating member reciprocated in the direction of said conveying means, and means cooperating with said conveying means for closing the lid of said box upon said box.

17. An apparatus for firmly securing lids to boxes at the hinged portion thereof comprising means for compressing the adjacent walls of said lid and box when said lid is disposed entirely open and is positioned in substantially the same plane as said box, means for feeding said box from said compressing means, means for folding said lid upon said box, and means cooperating with said folding means to firmly hold the sides of said box while said folding means for said lid is in operation.

18. An apparatus for firmly securing lids to boxes at the hinged portion thereof comprising means for compressing the adjacent walls of said lid and box when said lid is disposed entirely open and is positioned in substantially the same plane as said box, means for feeding said box from said compressing means, means for folding said lid upon said box, pivoted means cooperating with one of the walls of said box for holding said box firmly while said folding means for 4 said lid is in operation.

JOHANNES SCHMIEDEL. 

